"But at low ISO nothing can beat this camera." - CEO SIGMA Pt. 2

Started 10 months ago | Discussions thread
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Re: Reilly Compares JPG to Jpg and the outcome is exactly the same.
In reply to gaussian blur, 10 months ago

gaussian blur wrote:

Basalite wrote:

Raw versus jpeg won't make much of a difference. What he showed is that the Sigma image is full of aliasing artifacts (aka false detail). It's not resolving better than the Nikon (nor can it) and that isn't going to change if it was raw.

True. I redid the comparo with the jpg. No matter what I did there, there was no way some fool wasn't going to try to shoot holes in the result with some lame objection. The result converted to jpg was indeed the same (yet another advantage inherent in high MP count) and was posted. Unmangled by DPR compression, the outcome is clearer yet on the home screen.

Spiky foveon artifacts, misplaced pixels and overboosted contrast do not more detail make, any more than you can blow helium into a 4700X3136 jpg and make it 6000X4000.

To compare the maximum resolution of cameras you compare RAWs, not jpgs.

That won't change much of anything. It's not going to magically make the aliasing go away. The aliasing already happened before there even was a raw image and can't be removed without also removing real details. The damage is done.

You might like the look of aliasing (and apparently, you do) but don't confuse that with accurately resolving detail. Alias artifacts are false details that weren't in the original subject.

Yet, every professional review sees significantly more detail in a Sigma image than an equivalent, and even greater, MP Bayer sensor camera. I guess you know better than them, huh?

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